Findings of mute swans (Cygnus olor, Gmelin) in Croatia ringed in other countries

Šalamon, Tanja (2009) Findings of mute swans (Cygnus olor, Gmelin) in Croatia ringed in other countries. Diploma thesis, Faculty of Science > Department of Biology.

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Abstract

Scientific bird ringing is a research method based on individual marking of wild birds, and represents one of the most efficient methods for studying bird migrations. In the period between 1989 and 2008, 641 findings of Mute Swan specimens ringed in 10 European countries, including Serbia, Slovakia, Hungary, Poland, Germany, Slovenia, Belarus, Czech Republic and Austria, have been recorded in Croatia. Mute Swan is a vagrant bird in the middle European region, with short migrations because of foraging. Mute Swans leave their nesting sites periodically during winter, but unlike real migratory birds, they do not migrate to the south, and remain in the same latitude. Most of the Mute Swan findings were marked by the Hungarian bird ringing central. Based on the findings, it has been determined that over the last twenty years in Croatia this species is more common in winter, and Mute Swans have begun nesting there. Successful bird conservation projects have caused an increase in the population of Mute Swans, which in turn caused an increase in the breeding areal of this species.

Item Type: Thesis (Diploma thesis)
Keywords: migration, ringing, mute swan, finding, Croatia
Supervisor: Dolenec, Zdravko
Date: 2009
Number of Pages: 114
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 11 Sep 2014 11:11
Last Modified: 17 Sep 2014 12:59
URI: http://digre.pmf.unizg.hr/id/eprint/2715

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